Hi again @guergana,
The second part of the HTML/CSS workshop on Saturday will start at 9:30 at the Kiron office. I know this is a little early, and I myself am not entirely happy with that, but the students are coming to Berlin specifically for that, so we want to use as much time as possible. However, the schedule is quite tight and around 1 pm we plan to finish up and move on to the Crypto Party. I don’t know how much sense it makes to join at 11 then, but we’d definitely love to have you , so that’s up to you, I’d say.